Serpentine Micromixers Using Extensional Mixing Elements
Computational fluid dynamics modeling was used to characterize the effect of the integration of constrictions defined by the vertices of hyperbolas on the flow structure in microfluidic serpentine channels. In the new topology, the Dean flows characteristic of the pressure-driven fluid motion along...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-10-01
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| Series: | Micromachines |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2072-666X/13/10/1785 |
| _version_ | 1827648766346264576 |
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| author | George Tomaras Chandrasekhar R. Kothapalli Petru S. Fodor |
| author_facet | George Tomaras Chandrasekhar R. Kothapalli Petru S. Fodor |
| author_sort | George Tomaras |
| collection | DOAJ |
| description | Computational fluid dynamics modeling was used to characterize the effect of the integration of constrictions defined by the vertices of hyperbolas on the flow structure in microfluidic serpentine channels. In the new topology, the Dean flows characteristic of the pressure-driven fluid motion along curved channels are combined with elongational flows and asymmetric longitudinal eddies that develop in the constriction region. The resulting complex flow structure is characterized by folding and stretching of the fluid volumes, which can promote enhanced mixing. Optimization of the geometrical parameters defining the constriction region allows for the development of an efficient micromixer topology that shows robust enhanced performance across a broad range of Reynolds numbers from <i>Re</i> = 1 to 100. |
| first_indexed | 2024-03-09T19:45:38Z |
| format | Article |
| id | doaj.art-ab072590fc8c4c608211f7d057e3d6d7 |
| institution | Directory Open Access Journal |
| issn | 2072-666X |
| language | English |
| last_indexed | 2024-03-09T19:45:38Z |
| publishDate | 2022-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Micromachines |
| spelling | doaj.art-ab072590fc8c4c608211f7d057e3d6d72023-11-24T01:24:27ZengMDPI AGMicromachines2072-666X2022-10-011310178510.3390/mi13101785Serpentine Micromixers Using Extensional Mixing ElementsGeorge Tomaras0Chandrasekhar R. Kothapalli1Petru S. Fodor2Department of Physics, Cleveland State University, 2121 Euclid Avenue, Cleveland, OH 44236, USADepartment of Chemical and Biomedical Engineering, Cleveland State University, 2121 Euclid Avenue, Cleveland, OH 44236, USADepartment of Physics, Cleveland State University, 2121 Euclid Avenue, Cleveland, OH 44236, USAComputational fluid dynamics modeling was used to characterize the effect of the integration of constrictions defined by the vertices of hyperbolas on the flow structure in microfluidic serpentine channels. In the new topology, the Dean flows characteristic of the pressure-driven fluid motion along curved channels are combined with elongational flows and asymmetric longitudinal eddies that develop in the constriction region. The resulting complex flow structure is characterized by folding and stretching of the fluid volumes, which can promote enhanced mixing. Optimization of the geometrical parameters defining the constriction region allows for the development of an efficient micromixer topology that shows robust enhanced performance across a broad range of Reynolds numbers from <i>Re</i> = 1 to 100.https://www.mdpi.com/2072-666X/13/10/1785passive micromixersDean flows and mixerselongational flowstretching flowserpentine channelshyperbolic constrictions |
| spellingShingle | George Tomaras Chandrasekhar R. Kothapalli Petru S. Fodor Serpentine Micromixers Using Extensional Mixing Elements Micromachines passive micromixers Dean flows and mixers elongational flow stretching flow serpentine channels hyperbolic constrictions |
| title | Serpentine Micromixers Using Extensional Mixing Elements |
| title_full | Serpentine Micromixers Using Extensional Mixing Elements |
| title_fullStr | Serpentine Micromixers Using Extensional Mixing Elements |
| title_full_unstemmed | Serpentine Micromixers Using Extensional Mixing Elements |
| title_short | Serpentine Micromixers Using Extensional Mixing Elements |
| title_sort | serpentine micromixers using extensional mixing elements |
| topic | passive micromixers Dean flows and mixers elongational flow stretching flow serpentine channels hyperbolic constrictions |
| url | https://www.mdpi.com/2072-666X/13/10/1785 |
| work_keys_str_mv | AT georgetomaras serpentinemicromixersusingextensionalmixingelements AT chandrasekharrkothapalli serpentinemicromixersusingextensionalmixingelements AT petrusfodor serpentinemicromixersusingextensionalmixingelements |